Home / 19,141.54-28,712.85-5,290.54

Finding the Fourth Proportional to 19,141.54, 28,712.85 and 5,290.54

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Solution

The fourth proportional to 19,141.54, 28,712.85 and 5,290.54 is: 7,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.54 : 28,712.85 = 5,290.54 : x
  2. Step 2: Convert to fraction form
    19,141.54/28,712.85 = 5,290.54/x
  3. Step 3: Cross multiply
    19,141.54x = 28,712.85 × 5,290.54
  4. Step 4: Simplify right side
    19,141.54x = 151,906,481.44
  5. Step 5: Solve for x
    x = 151,906,481.44/19,141.54
  6. Step 6: Final answer
    x = 7,935.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.